238 EXPERIMENT STATION. [Jan. 



While the analyses are not sufficient in nnmber to enable one 

 to draw any positive conclusions, attention may be called to a 

 few of the more striking facts. 



Stalks. — A com])aratively low percentage of both protein and 

 fat is noted in the stalks of all the several kinds. The pro- 

 portion of extract matter is lowest in the Eureka and the fiber 

 percentage the highest. 



Leaves. — The protein percentage is highest in the leaves. 

 ISIaturally, the fiber percentage is less in the leaves than in the 

 stalks, while the percentage of ash is noticeal)ly high and quite 

 constant for the three types. The leaves of the three varieties 

 analyzed resemble each other quite closely in the proportion of 

 all of the several groups of constituents. 



Husks. — The one noticeable difference in the case of the 

 husks of the several varieties consists in the low protein con- 

 tent in the Pride of the ISTorth and the high protein content of 

 the Eureka. This is, of course, due to the fact that the ears 

 of the latter were in the formative stage, while those of the 

 former had matured and the protein had entered into the 

 kernel. The fiber content of the Pride of the North was some- 

 what higher than that contained in the Eureka, which is ex- 

 plained on similar grounds. 



Ears. — The composition of the ears of the three varieties 

 indicate a very immature condition on the part of the Eureka, 

 — high protein and fiber and low carbohydrates and fat, — and 

 a reasonably mature condition of the ears yielded by the Pride 

 of the North and Teaming. 



ReI.ATIVE PROrORTIONS OF GrAIN AJN^D COB. 



Ten representative ears of corn were selected at the time of 

 husking from the crops of 1908 and 1909 and preserved for 

 analysis. The corn and cob were weighed separately at the 

 time "of shelling, dry-matter determinations made, and percent- 

 age of cob and kernel determined. 



